is a Japanese basketball player. He competed in the men's tournament at the 1956 Summer Olympics. References Category:1934 births Category:Living people Category:Japanese men's basketball players C
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb74ddf187c06941341c520177a7561683539ccd52805965e325e237fa37a42f7. Chain 2 (Bitcoin): anchored in block 954500 (2026-06-20T04:47:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9b6c9d70-5330-4628-a530-e53debe6ca5e.json and https://artists.proofprofile.net/proofs/artist/9b6c9d70-5330-4628-a530-e53debe6ca5e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).